【摘要】 试验表明 :在羽衣甘蓝的初蕾期至盛花期 ,每隔 1 0d用 0 .2 %硼砂和磷酸二氢钾(Na2 B4O7+KH2 PO4)混合液进行根外追肥 ,可以显著提高叶片叶绿素含量 ,延长绿叶功能期 ,增加叶片中游离脯氨酸含量 ,增强抗旱性 ;提高种子的产量和质量更多还原

【Abstract】 The results of experiment showed:Spray 0.2%(Na 2B 4O 7 and KH 2OP 4)out of roots for fertilizing.From the orignal buds stage of bore cole to the flourish flowering imgproved the contents of chlorophyall evedently,and prolonged the functional period of green leaves,Meanwhile,the contents of free Proline in leaves.was increased and the quality of draught resitant,Was inforced as a result,the production and quality of seeds were greatly improved.更多还原